To portray the progressively hot surface of one of these moons, the set was made very bright but not hot. "It's a big room but they were only lighting a specific spot," explained Tucker actor Connor Trinneer. (Star Trek Monthly issue 110, p. 20)

Given the way the moon was brought up without explanation very abruptly and its surface had a similar texture as the planetoid Enterprise had been shown orbiting earlier, a Homeric nod might be suspected, the writers mistakenly referring to the same body both as a planetoid and later as a moon.

Zimmerman's statement is somewhat unclear. He may have been referring to Ganymede, the third Galilean moon, rather than Amalthea, Jupiter's actual third moon, although Io (Jupiter's first moon) is the only (currently known) moon of Jupiter to display active volcanism.

The gas giant Mab-Bu VI had one unnamed moon. The moon could only barely be considered class M and was constantly swept by ionic cyclones and electromagnetic storms. The ground cover was all non-porous rock which made a survival for a long time on the moon very unlikely.

During the 19th century, hundreds of convicted criminals from Ux-Mal were imprisoned on the moon, their consciousnesses detached from their physical bodies and set adrift in the moon's constant storms.

In 2167, the criminals attempted to escape aboard the FederationstarshipUSS Essex. However, the starship became trapped in the electromagnetic currents in the moon's atmosphere and was destroyed.

The criminals tried to escape again in 2368, when the USS Enterprise-D arrived to investigate the distress call from the Essex. They inhabited the bodies of Data, Deanna Troi, and Miles O'Brien, claiming to be the disembodied minds of Essex crew members. They took the ship under their control and ordered to assume a polar orbit of the southern polar region, where the other members of their species were located. Their true identities were uncovered and the criminals were expelled before they could bring aboard the rest of their number. (TNG: "Power Play")

The map of the Romulan system seen in Star Trek Nemesis does not depict moons around any of it's four planets. However, TNG: "The Defector" has a scene showing two bodies in the Romulan sky, one of which might be Remus, which would make the other a moon of either Romulus or Remus. Alternatively, both might be moons. ENT: "The Aenar" also shows an object close to Romulus, the texture of which doesn't seem to correspond with Remus. The final draft script of "The Aenar" identified it as a Romulan moon. Note that despite the perspective, this body could be quite small.